Improved gate-pulley



UNITED STATES DAVID BEDELL, OF SENECA FALLS, NEW YORK.

IMPROVED GATE-PULLEY.

Specification forming part of Letters Patent No. 28,146, dated May 8,1860.

To @ZZ whom it may concern:

Be it known that I, DAvID BEDELL, of Seneca Falls, in the county ofSeneca and State of New York, have invented a new-and ImprovedReversible Gate-Pulley; and I do hereby declare that the following' is afull and exact description thereof, reference being had to theaccompanying drawings, in which- Figure l is a side elevation of thepulleyframe, shown as attached to theA gate-post. Fig. 2 is a plan viewof the same. Fig. 3 is an elevation of a gate, showing the pulley andweight in operation.

Like letters refer to corresponding` parts in all of the iigures.

My improvement consists in an arrangement of pulleys and extension-barfor adapting the weight used for closing to the weight of the gate andadjusting it to either right or left hand gates.

As represented in the drawings, A is a metallic frame firmly attached tothe gate-post B by screws, and further sustained by the diagonal braceJ. A vertical pulley Gis pivoted in the center of the front orprojecting portion of the frame A, so as to turn freely on its axis. Ahorizontal pulley H is pivoted in the forked end of the bar E. This baris held against the front side of the frameA by the thumb-screw b, whichpasses through a slot f longitudinally of the bar. This slot, beinglong, admits of increasing or diminishing the distance bet-Ween the twopulleys, as may be required. The bar rests across a projecting part e onthe frame, which forms its fulcrum or chief support in connection withthe thumb-screw b.

The weight I, Fig. 3, is attached to a suitable chain or cord, which ispassed over the vertical pulley G and around the horizontal one H andconnected with the gate D in the usual manner, so that when opened theweight is drawn up, and in descending by its gravity closes the gate.

My invention is designed to apply to any gateA or heavy door wheresuchma' device 1s needed, and as the power required varies so greatlywith the size and weight it must be capable of adjustment thereto, aswell as to the direction in which the gate or door opens, be it rightorleft. The former is provided for in the slotted extension-bar E, whichcarries the pulley H. By loosening the thumbscrew b and extending thebar it places pulley H (which is the fulcrum over which the power of theweight is applied to the gate) farther from the axis or center of motionof the gate, thereby increasing the power exerted by the falling weight,and by sliding this bar more or less the power can be adjusted to theresistance oiered by the gate with great precision and with theslightest effort. To adapt it to the opening of gates in differentdirections, the bar E is made reversible. To this end another hole c forthe thumb-screw b is provided on the opposite side of the pulley G, butin the same relative position, and the bar is reversed, bringing thepulley H in the position indicated by the dot-ted lines F in Fig. l, bywhich it operates in the same manner as before, the pulley G beingstationary, so that the only change is in the relative positions of thetwo. This forms a very simple, cheap, and effectual device for readilyattaching a weight to gates in all situations and adjusting the power toclose them efficiently.

What I claim as my invention, and desire to secure by Letters Patent, is

The reversible extension-bar E, which bears the fulcrum-pulley H,constructed and arranged in combination with its frame or support A andin relation to the stationary pulley G and gate or door Dsubstantiallyas and for the purposes herein specified.

DAVID BEDELL. iif'itiiesses:

WM. CLARK, JOHN BRYANT.

